Marini Wijayanti

• Lecturer at Sriwijaya University

Cacing sutera merupakan pakan alami yang umum digunakan untuk larva ikan di unit-unit pembenihan ikan. Budidaya cacing sutera membutuhkan media yang digunakan sebagai substrat dan juga sebagai sumber makanan untuk mendukung pertumbuhannya. Kotoran puyuh dan ampas tahu terfermentasi serta tepung tapioka dapat dijadikan sebagai media budidaya cacing...

Catfish (Clarias gariepinus) that are reared with probiotics as biofloc-forming agent is thought to increase the fish production. Applying swamp probiotics to the water media has never been studied to ensure the flocks' availability in the rearing media. This study aimed to determine the appropriate frequency of probiotics application collected fro...

Highlight Research Freshwater eels in Kuari River consisted of two species marmorata and A. bengalensis Anguilla marmorata had the highest similarity of 99.82%-100%, while bengalensis indicated the highest identity of 99.84%-100% to the same species in the GenBank database. Phylogenetic species indicated that Anguilla marmorata and Anguilla bengale...

Aquaculture development activities in swamp water has the problem of contamination from organic matter, and this waste has the potential for environmental challange. Nitrifying bacteria are a natural instrument that can play a role in maintaining the stability of the quality of swamp waters through their role as bioremediator. Therefore, its presen...

Unit Pembenihan Rakyat (UPR) D5 Desa Sukapindah berdiri sejak tahun 2019 yang dengan komoditas produksi utama berupa benih ikan lele sangkuriang. Upaya yang dapat dilakukan untuk meningkatkan kelangsungan hidup dan pertumbuhan ikan adalah melalui optimalisasi kualitas air sesuai kebutuhan fisiologis ikan. Tujuan dari kegiatan pengabdian kepada masy...

Kualitas air tambak yang menurun seringkali disebabkan kurangnya pengelolaan tanah dasar yang berakibat kurang optimalnya produksi budidaya ikan. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik fisika dan kimia sedimen tambak tradisional ikan bandeng di Banyuasin II, Kabupaten Banyuasin, Sumatera Selatan. Hasil dari penelitian menu...

Kelompok Pembudidaya Ikan Fish Under Crew berlokasi di Desa Pulau Semambu yang berdiri sejak tahun 2016 dengan komoditas ikan antara lain tambakan. Ikan tambakan yang dibudidaya sudah dapat merespons pakan buatan yang diberikan. Namun, pemanfaatan pakan oleh ikan tambakan tersebut masih belum efisien. Hal ini menjadi permasalahan yang dihadapi oleh...

Ikan selincah (Belontia hasselti) merupakan salah satu jenis ikan yang memiliki potensi dikembangkan menjadi komoditas budidaya. Tantangan dalam kegiatan budidaya ikan selincah adalah masih rendahnya kelangsungan hidup ikan ketika dipelihara pada lingkungan budidaya. Pemberian bakteri kandidat probiotik asal rawa merupakan salah satu alternatif unt...

Pangasius catfish rearing ponds and swamp waters are types of stagnant waters (lentic) that are commonly found in the South Sumatra region. Cyanobacter is a group of phytoplankton that plays an important role in the management of aquatic area, but it is not widely known which species is the most dominant in swamp waters. This study aims to determin...

Terjadinya pandemi covid-19 telah banyak menghambat kegiatan masyarakat yang rutin dilakukan. Namun begitu, kebutuhan masyarakat juga harus tetap terpenuhi di tengah kondisi seperti saat ini, ketersediaan lahan budidaya menjadi salah satu permasalahan nya. Budidaya ikan dalam ember (Budikdamber) dapat menjadi alternatif untuk mengatasi masalah ters...

Conventional catfish culture in Ogan Ilir (OI) have not optimal production, it can be increased by biofloc and aquaponics with local swamp bacteria as a starter. The purpose of this study was to apply biofloc technology and a combination of aquaponic-biofloc to increase the productivity of catfish (Clarias sp.) rearing. The study used two ponds, a...

Biofloc Technology (BFT) menjadi salah satu teknologi alternatif dalam akuakultur yang bertujuan untuk memperbaiki kualitas air dan meningkatkan efesiensi pemanfaatan nutrisi. Tujuan dari Pengabdian Kepada Masyarakat ini adalah untuk memperkenalkan dan memberikan informasi kepada masyarakat dan petani tentang budidaya ikan Lele dengan sistem bioflo...

Wijayanti M, Syafudin M, Yulisman, Nurianti Y, Hidayani A, Gofar N. 2020. Characterization of Arthrospira platensis cultured in wastewater of Clarias catfish farming media: DNA barcode, helical form, growth, and phycocyanin. Biodiversitas 21: 5872-5883. Arthrospira production technology in catfish waste media can be an alternative to reduce environ...

Cockle shells was proven potential used as an alternative liming material. Combination of lime derived from cockle shells with calcite as common lime materials used to overcome limited quantity of cockle shells as the problem of seasonal availability of cockle shells. Besides, these materials have difference characteristics that to be expected can...

Pemeliharaan ikan lele yang dilakukan pembudidaya ikan sebagian besar tidak melakukan upaya pengelolaan kualitas air seperti sirkulasi maupun penggantian air (water exchange). Salah satu teknologi untuk menjaga kualitas air media budidaya adalah menggunakan sistem resirkulasi. Tujuan dari kegiatan ini untuk mengaplikasikan sistem resirkulasi dengan...

Desa Pulau Semambu merupakan suatu desa yang terdapat di Kabupaten Ogan Ilir yang memiliki potensial untuk dilakukan pengembangan bidang perikanan terutama dibidang budidaya ikan perairan tawar. Permasalahan dihadapi oleh pembudidaya ikan yang menjadi mitra adalah tingginya harga pakan di pasar sehingga menyebabkan keuntungan yang diperoleh oleh mi...

Eucaryote microbes have an important role in forming bioflocs in the brackishwater aquaculture ponds. Bioflocs become potential live feed for milkfish or crustacea. This study aimed to identify the potential of eukaryotic microbes in the brackishwater aquaculture as the biofloc candidates potential development. This study was done through the water...

Syaifudin M, Wijayanti M, Dwinanti SH, Muslim, Mahendra M, Marliana S. 2020. DNA barcodes and phylogenetic of striped snakehead and ocellated snakehead fish from South Sumatra, Indonesia. Biodiversitas 21: 1227-1235. This research aimed to identify the sequences of cytochrome c oxidase subunit I gene mitochondrial DNA (COI mtDNA), to construct a ph...

Utilization of swamp areas as fish culture locations alters water quality. Therefore, it is necessary to improve the water quality with environmental friendly biological treatments, such as the addition of microbes as probiotics in media culture. The purpose of this study was to determine the combination of microbes from swamps that can improve the...

Akuaponik adalah gabungan budidaya ikan dan tanaman hidroponik dengan sistem resirkulasi. Akuaponik merupakan salah satu alternatif yang dapat memanfaatkan limbah budidaya ikan serta mampu menghemat penggunaan lahan dan air. Tujuan dari kegiatan ini adalah memberikan informasi kepada para pembudidaya mengenai pemeliharaan ikan nila dan tanaman kang...

The water pH of swamp land is generally low (below 4) and becomes a constraint in catfish culture that requires pH 6.5-8.5. In this current study, the low pH value of water was overcome by liming using lime produced from the mussel freshwater shells. The purposes of this study were to determine the best dosage of lime derived from mussel freshwater...

Aquaculture sometimes only depends on water absorption without water exchange therefore the accumulation of organic material give impact on water quality in aquaculture and cause illness and death of fish. Fungi have many variations in water that can be selected by isolation and identification to maintain water quality swamp cultured. This research...

Almaniar et al, 2019. The Using of Water Jasmine (Echinodorus palaefolius) as Biological Filter on Angelfish (Pterophyllum scalare) Rearing. JLSO Water quality was One factors that become a contraint in ornamentalfish culture. This study aimed to compare the result of jasmine water as a biological filter in maintaining water quality and reducing or...

Land use change from forest to oil palm plantation at Sumatra could decrease biodiversity, including bacterial diversity. The case of Bukit Dua Belas transformation from forest to oil palm plantation was gotten for measuring shift community of soil bacterial in both areas. The diversity of bacterial communities from rainforest and oil palm plantati...

The frequency of flushing on coconut charcoal and sponge filters by Recirculation Aquaculture System (RAS) can apply to maintain water quality. This research was conducted on Laboratorium Dasar Perikanan, Department of Aquaculture, Faculty of Agriculture, Sriwijaya University from March to May 2017. The study used Completely Randomized Design with...

The aims of this research were to study the influence of mixed industrial soy sauce liquid waste and Zarrouk medium mixture on population density and specific growth rate of Spirulina platensis on a short periode. This study has been conducted from March to April 2017 in the Laboratory of Aquaculture, Aquaculture study Program, Faculty of Agricultu...

The purpose of this study was to determine the best fertilizer compotition that was made from technical fertilizer and waste water of cat fish farming. This experimental was conducted at Aquaculture Laboratory, Faculty of Agriculture, Sriwijaya University. It used complete randomized design (CRD) method which had five treatments and three replicati...

Pangasius is a fast-growing fish species that has great potential for production and export growth in Indonesia. Their farming produces a lot of organic material and ammonia which potentially make polution in freshwater body. The wastewater can be used for high value microalgal cultivation media. The microalgae are used in various fields, one of th...

Bacteria derived from swamp sediments and aquaculture ponds potential to be probiotics. The study aims to determine the sequence of 16S r RNA gene of isolate of probiotics candidate bacteria from sediment of swamp, to determine the phylogenetic tree between the bacterial species from isolates and Gene Bank data central for their potential as probio...

Palm oil production in Indonesia increased constantly over the last decades, which led to massive deforestation, especially on Sumatra island. The ongoing conversion of rainforest to agricultural systems results in high biodiversity loss. Here, we present the first RNA-based study on the effects of rainforest transformation to rubber and oil palm p...

The diversity of bacterial communities in aquatic sediment of rainforest and oil palm plantation at Sumatra was studied using pyrosequencing of 16S rRNA gene and common biodiversity indices. Phylogenetic approach was used for revealing the community shift of bacterial phyla and genera in both areas. Ecological approach used soil pH, total Carbon (T...

Liming ponds is intended to increase swamp soil and water fish ponds pH. The golden apple snail (Pomacea canalicuata) is one kinds of agriculture pest which is potentially used as material of lime. The golden apple snail shells containing CaO (91.62%) and MgO (1.66%). This study aims to determine the best dosage of lime derived from golden apple sn...

ABTRACT The aim of this research was to know the effect of paci-paci (L. lavandulaefolia) powder addition in feed suplemented for 14 days to the prevent A. hydrophila infection Pangasius sp. The research was conducted on August-September 2016 in Laboratorium Kolam Percobaan Budidaya Perairan, Aquaculture Study Program, Agriculture Faculty, Sriwijay...

Prokaryotes are the most abundant and diverse group of microorganisms in soil and mediate virtually all biogeochemical cycles in terrestrial ecosystems. Thereby, they influence aboveground plant productivity and diversity. In this study, the impact of rainforest transformation to intensively managed cash crop systems on soil prokaryotic communities...

Archaeal OTU table at subplot level including taxonomic information.

Box plots of soil characteristics summarized by landscape and land use system.

Soil characteristics and georeferences of the analyzed plots.

Rarefaction analyses of the bacterial diversity of the two analyzed landscapes and four land use systems.

Observed bacterial OTUs and diversity at subplot level with summaries at plot level.

Bacterial OTU table at subplot level including taxonomic information.

Statistical analyses of soil characteristics.

Observed archaeal OTUs and diversity at subplot level with summaries at plot level.

Box plots of soil characteristics summarized by land use system.

Rarefaction analyses of the archaeal diversity of the two analyzed landscapes and four land use systems.

The specific bacteria in forests and on oil palm plantations are lipolytic bacteria. Their enzymes have been applied in the agro-aquaculture, food, detergent, pharmaceutical, dairy, and biodiesel-biokerosene industries. This study describes the diversity of cultivable lipolytic bacteria from soil and aquatic sediment in a forest and on an oil palm...